TY  - RPRT
TI  - Generalized estimating equations for ordinal categorical data: arbitrary patterns of missing responses and missingness in a key covariate.
AU  - A Y Toledano
AU  - C Gatsonis
PY  - 1999
DO  - 10.1111/j.0006-341x.1999.00488.x
UR  - https://pubmed.ncbi.nlm.nih.gov/11318205/
ID  - 11318205
ER  -